Precision Devices International Limited Precision Devices Made in UK
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PD.1550

  • Heavy-duty cast aluminium chassis for increased rigidity.
  • Power compression only 2.7dB at rated power*.
  • A B/L in excess of 26 T/m.
  • Suitable for both horn-loaded and bass reflex designs.


*2.83V. Half space response measured in a 107 Litre vented enclosure.


 

*1 Power compression is the reduction of sensitivity at the specified power. Higher power ratings do not necessarily give a proportionate increase in SPL therefore the maximum SPL of the driver may significantly exceed that of other manufacturers with high power ratings.

1. AES Standard (40 to 400 Hz) Program 1200 Watts.
2. AES Recommended Practice.
3. Thiele - Small Parameters follow a 1000 Watt preconditioning period.

Please note that frequency response measurements are supplied for comparison purposes only and are not a measure of the low frequency performance which may be achievable in a fully optimised system.

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SPECIFICATIONS
Nominal Diameter380 mm / 15"
Voice Coil Diameter101 mm / 4.0"
Nominal Impedance8 Ω
Available In4 Ω/ 8 Ω/ 16 Ω
Power Rating600 w (A.E.S.)
Peak Power (6dB Crest Factor)2400 w (A.E.S.)
Sensitivity (1w / 1m)99 dB
Frequency Range40 Hz - 1.5 kHz
Recommended Enclosure Volume80 - 200 Litres
Resonance46.17 Hz
Voice Coil Winding Depth22 mm / 0.87"
Magnet Gap Depth10 mm / 0.39"
Flux Density Tesla1.5 Tesla
Magnet MaterialCeramic
Voice Coil MaterialCopper
Former MaterialGlass Fibre
Dust Dome MaterialPaper
Suspension MaterialFabric
Cone Surround MaterialPaper / Fabric
THIELE SMALL PARAMETERS
Fs 46.17 Hz
Re 6.59 Ω
Qms13.87
Qes0.3
Qts0.29
Le 0.78 mh
L2 1.73 mh
R2 14.49 Ω
Vas 126.39 litres
Mms 114.38 g
Sd 907.92 cm2
Cms 109.33 µm/N
BL26.61 T/m
Xmax8.2 mm
Vd0.73 litres
Ref. Efficiency3.14%
MOUNTING AND SHIPPING INFORMATION
Overall Diameter410 mm
Width Across Flats395 mm
Flange Height10 mm
Depth (Excl. Flange)146 mm
Magnet Diameter220 mm
Chassis Shoulder Diameter357 mm
Outer Bolt Circle6 * M6 on 395mm PCD
Inner Bolt Circle8 * M6 on 370mm PCD
Nett Weight12.8 Kg / 28.22 lb.
Shipping Weight14 Kg / 30.86 lb.
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